Is CVE-2006-3216 actively exploited?

CVE-2006-3216 has no public evidence of in-the-wild exploitation as of 2025-04-03.

What is the CVSS score for CVE-2006-3216?

CVE-2006-3216 has a CVSS score of 5 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P.

How do I patch CVE-2006-3216?

Patch guidance is available from clearswift security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2006-3216.

CVE-2006-3216 - remediation guidance & executive summary

Q: Which products are affected by CVE-2006-3216?

2 products: clearswift mailsweeper for exchange, clearswift mailsweeper for smtp.

Description

Clearswift MAILsweeper for SMTP before 4.3.20 and MAILsweeper for Exchange before 4.3.20 allows remote attackers to cause a denial of service via (1) non-ASCII characters in a reverse DNS lookup result from a Received header, which leads to a Receiver service stop, and (2) unspecified vectors involving malformed messages, which causes "unpredictable behavior" that prevents the Security service from processing more messages.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: none
Integrity: none
Availability: partial
Weaknesses: NVD-CWE-Other

Metadata

Primary Vendor: CLEARSWIFT
Published: 6/24/2006
Last Modified: 4/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2006-3216

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary